99859331 has 16 divisors (see below), whose sum is σ = 117787488. Its totient is φ = 83462400.

The previous prime is 99859327. The next prime is 99859351. The reversal of 99859331 is 13395899.

It is a cyclic number.

It is not a de Polignac number, because 99859331 - 2² = 99859327 is a prime.

It is a super-2 number, since 2×99859331² = 19943771975535122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99859321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38351 + ... + 40871.

It is an arithmetic number, because the mean of its divisors is an integer number (7361718).

Almost surely, 2^99859331 is an apocalyptic number.

99859331 is a deficient number, since it is larger than the sum of its proper divisors (17928157).

99859331 is a wasteful number, since it uses less digits than its factorization.

99859331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822.

The product of its digits is 262440, while the sum is 47.

The square root of 99859331 is about 9992.9640747878. The cubic root of 99859331 is about 463.9411386764.

The spelling of 99859331 in words is "ninety-nine million, eight hundred fifty-nine thousand, three hundred thirty-one".